VP Series Encoder Battery Replacement

Modified on Thu, 29 Jul 2021 at 06:19 PM


The encoder built in the servomotor stores position data. To prevent the  position data from being lost, the encoder backup batteries supply  power to the encoder memory.
Periodically replace the encoder backup batteries that are loaded in the robot unit.

This procedure applies to the following robot types: VP-6242, VP-5243

Tools and Parts needed

  • Philips-Head screwdriver
  • Encoder backup battery for VP series robots. 
    • 410611-0070 – Encoder backup battery (3set)

If you are not sure which part number you need or the Robot Arm you own please stop and contact your DENSO Robotics sales representative.    

Video Tutorial

Step by Step Guide

Step 1

Prepare a new set of 3 backup batteries for replacement. 

Step 2

Turn the controller power ON. 

When replacing the encoder backup battery, do not turn the controller power OFF. If you do so, the encoder positional data may be lost.

Step 3

Turn the motor power OFF when replacing the battery. 

Push the EMERGENCY STOP button on the teach pendant or mini pendant, and the button is locked in the stop status. 

When rotating the EMERGENCY STOP button clockwise, the button will be released. 

Step 4

Remove the cover from the robot unit. 

Step 5

Replace an old battery with new one, one by one. 

Do not disconnect all old batteries at the same time before connecting a  new one. If you do so, the encoder positional data may be lost. 

Be sure to replace all of three batteries with new ones at one time. Otherwise, the battery service life will become short.

Step 6

Reinstall the cover to the robot unit.

Tightening torque:
Cross pan-head screw: 0.59 Nm

Next Steps:

Owner's Manual Reference


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